ui_shared.c

quakeIII源码这个不用我多说吧

					return multiPtr->cvarList[i];
 				}
 			}
 		}
	}
	return "";
}

qboolean Item_Multi_HandleKey(itemDef_t *item, int key) {
	multiDef_t *multiPtr = (multiDef_t*)item->typeData;
	if (multiPtr) {
	  if (Rect_ContainsPoint(&item->window.rect, DC->cursorx, DC->cursory) && item->window.flags & WINDOW_HASFOCUS && item->cvar) {
			if (key == K_MOUSE1 || key == K_ENTER || key == K_MOUSE2 || key == K_MOUSE3) {
				int current = Item_Multi_FindCvarByValue(item) + 1;
				int max = Item_Multi_CountSettings(item);
				if ( current < 0 || current >= max ) {
					current = 0;
				}
				if (multiPtr->strDef) {
					DC->setCVar(item->cvar, multiPtr->cvarStr[current]);
				} else {
					float value = multiPtr->cvarValue[current];
					if (((float)((int) value)) == value) {
						DC->setCVar(item->cvar, va("%i", (int) value ));
					}
					else {
						DC->setCVar(item->cvar, va("%f", value ));
					}
				}
				return qtrue;
			}
		}
	}
  return qfalse;
}

qboolean Item_TextField_HandleKey(itemDef_t *item, int key) {
	char buff[1024];
	int len;
	itemDef_t *newItem = NULL;
	editFieldDef_t *editPtr = (editFieldDef_t*)item->typeData;

	if (item->cvar) {

		memset(buff, 0, sizeof(buff));
		DC->getCVarString(item->cvar, buff, sizeof(buff));
		len = strlen(buff);
		if (editPtr->maxChars && len > editPtr->maxChars) {
			len = editPtr->maxChars;
		}
		if ( key & K_CHAR_FLAG ) {
			key &= ~K_CHAR_FLAG;


			if (key == 'h' - 'a' + 1 )	{	// ctrl-h is backspace
				if ( item->cursorPos > 0 ) {
					memmove( &buff[item->cursorPos - 1], &buff[item->cursorPos], len + 1 - item->cursorPos);
					item->cursorPos--;
					if (item->cursorPos < editPtr->paintOffset) {
						editPtr->paintOffset--;
					}
				}
				DC->setCVar(item->cvar, buff);
	    		return qtrue;
			}


			//
			// ignore any non printable chars
			//
			if ( key < 32 || !item->cvar) {
			    return qtrue;
		    }

			if (item->type == ITEM_TYPE_NUMERICFIELD) {
				if (key < '0' || key > '9') {
					return qfalse;
				}
			}

			if (!DC->getOverstrikeMode()) {
				if (( len == MAX_EDITFIELD - 1 ) || (editPtr->maxChars && len >= editPtr->maxChars)) {
					return qtrue;
				}
				memmove( &buff[item->cursorPos + 1], &buff[item->cursorPos], len + 1 - item->cursorPos );
			} else {
				if (editPtr->maxChars && item->cursorPos >= editPtr->maxChars) {
					return qtrue;
				}
			}

			buff[item->cursorPos] = key;

			DC->setCVar(item->cvar, buff);

			if (item->cursorPos < len + 1) {
				item->cursorPos++;
				if (editPtr->maxPaintChars && item->cursorPos > editPtr->maxPaintChars) {
					editPtr->paintOffset++;
				}
			}

		} else {

			if ( key == K_DEL || key == K_KP_DEL ) {
				if ( item->cursorPos < len ) {
					memmove( buff + item->cursorPos, buff + item->cursorPos + 1, len - item->cursorPos);
					DC->setCVar(item->cvar, buff);
				}
				return qtrue;
			}

			if ( key == K_RIGHTARROW || key == K_KP_RIGHTARROW ) 
			{
				if (editPtr->maxPaintChars && item->cursorPos >= editPtr->maxPaintChars && item->cursorPos < len) {
					item->cursorPos++;
					editPtr->paintOffset++;
					return qtrue;
				}
				if (item->cursorPos < len) {
					item->cursorPos++;
				} 
				return qtrue;
			}

			if ( key == K_LEFTARROW || key == K_KP_LEFTARROW ) 
			{
				if ( item->cursorPos > 0 ) {
					item->cursorPos--;
				}
				if (item->cursorPos < editPtr->paintOffset) {
					editPtr->paintOffset--;
				}
				return qtrue;
			}

			if ( key == K_HOME || key == K_KP_HOME) {// || ( tolower(key) == 'a' && trap_Key_IsDown( K_CTRL ) ) ) {
				item->cursorPos = 0;
				editPtr->paintOffset = 0;
				return qtrue;
			}

			if ( key == K_END || key == K_KP_END)  {// ( tolower(key) == 'e' && trap_Key_IsDown( K_CTRL ) ) ) {
				item->cursorPos = len;
				if(item->cursorPos > editPtr->maxPaintChars) {
					editPtr->paintOffset = len - editPtr->maxPaintChars;
				}
				return qtrue;
			}

			if ( key == K_INS || key == K_KP_INS ) {
				DC->setOverstrikeMode(!DC->getOverstrikeMode());
				return qtrue;
			}
		}

		if (key == K_TAB || key == K_DOWNARROW || key == K_KP_DOWNARROW) {
			newItem = Menu_SetNextCursorItem(item->parent);
			if (newItem && (newItem->type == ITEM_TYPE_EDITFIELD || newItem->type == ITEM_TYPE_NUMERICFIELD)) {
				g_editItem = newItem;
			}
		}

		if (key == K_UPARROW || key == K_KP_UPARROW) {
			newItem = Menu_SetPrevCursorItem(item->parent);
			if (newItem && (newItem->type == ITEM_TYPE_EDITFIELD || newItem->type == ITEM_TYPE_NUMERICFIELD)) {
				g_editItem = newItem;
			}
		}

		if ( key == K_ENTER || key == K_KP_ENTER || key == K_ESCAPE)  {
			return qfalse;
		}

		return qtrue;
	}
	return qfalse;

}

static void Scroll_ListBox_AutoFunc(void *p) {
	scrollInfo_t *si = (scrollInfo_t*)p;
	if (DC->realTime > si->nextScrollTime) { 
		// need to scroll which is done by simulating a click to the item
		// this is done a bit sideways as the autoscroll "knows" that the item is a listbox
		// so it calls it directly
		Item_ListBox_HandleKey(si->item, si->scrollKey, qtrue, qfalse);
		si->nextScrollTime = DC->realTime + si->adjustValue; 
	}

	if (DC->realTime > si->nextAdjustTime) {
		si->nextAdjustTime = DC->realTime + SCROLL_TIME_ADJUST;
		if (si->adjustValue > SCROLL_TIME_FLOOR) {
			si->adjustValue -= SCROLL_TIME_ADJUSTOFFSET;
		}
	}
}

static void Scroll_ListBox_ThumbFunc(void *p) {
	scrollInfo_t *si = (scrollInfo_t*)p;
	rectDef_t r;
	int pos, max;

	listBoxDef_t *listPtr = (listBoxDef_t*)si->item->typeData;
	if (si->item->window.flags & WINDOW_HORIZONTAL) {
		if (DC->cursorx == si->xStart) {
			return;
		}
		r.x = si->item->window.rect.x + SCROLLBAR_SIZE + 1;
		r.y = si->item->window.rect.y + si->item->window.rect.h - SCROLLBAR_SIZE - 1;
		r.h = SCROLLBAR_SIZE;
		r.w = si->item->window.rect.w - (SCROLLBAR_SIZE*2) - 2;
		max = Item_ListBox_MaxScroll(si->item);
		//
		pos = (DC->cursorx - r.x - SCROLLBAR_SIZE/2) * max / (r.w - SCROLLBAR_SIZE);
		if (pos < 0) {
			pos = 0;
		}
		else if (pos > max) {
			pos = max;
		}
		listPtr->startPos = pos;
		si->xStart = DC->cursorx;
	}
	else if (DC->cursory != si->yStart) {

		r.x = si->item->window.rect.x + si->item->window.rect.w - SCROLLBAR_SIZE - 1;
		r.y = si->item->window.rect.y + SCROLLBAR_SIZE + 1;
		r.h = si->item->window.rect.h - (SCROLLBAR_SIZE*2) - 2;
		r.w = SCROLLBAR_SIZE;
		max = Item_ListBox_MaxScroll(si->item);
		//
		pos = (DC->cursory - r.y - SCROLLBAR_SIZE/2) * max / (r.h - SCROLLBAR_SIZE);
		if (pos < 0) {
			pos = 0;
		}
		else if (pos > max) {
			pos = max;
		}
		listPtr->startPos = pos;
		si->yStart = DC->cursory;
	}

	if (DC->realTime > si->nextScrollTime) { 
		// need to scroll which is done by simulating a click to the item
		// this is done a bit sideways as the autoscroll "knows" that the item is a listbox
		// so it calls it directly
		Item_ListBox_HandleKey(si->item, si->scrollKey, qtrue, qfalse);
		si->nextScrollTime = DC->realTime + si->adjustValue; 
	}

	if (DC->realTime > si->nextAdjustTime) {
		si->nextAdjustTime = DC->realTime + SCROLL_TIME_ADJUST;
		if (si->adjustValue > SCROLL_TIME_FLOOR) {
			si->adjustValue -= SCROLL_TIME_ADJUSTOFFSET;
		}
	}
}

static void Scroll_Slider_ThumbFunc(void *p) {
	float x, value, cursorx;
	scrollInfo_t *si = (scrollInfo_t*)p;
	editFieldDef_t *editDef = si->item->typeData;

	if (si->item->text) {
		x = si->item->textRect.x + si->item->textRect.w + 8;
	} else {
		x = si->item->window.rect.x;
	}

	cursorx = DC->cursorx;

	if (cursorx < x) {
		cursorx = x;
	} else if (cursorx > x + SLIDER_WIDTH) {
		cursorx = x + SLIDER_WIDTH;
	}
	value = cursorx - x;
	value /= SLIDER_WIDTH;
	value *= (editDef->maxVal - editDef->minVal);
	value += editDef->minVal;
	DC->setCVar(si->item->cvar, va("%f", value));
}

void Item_StartCapture(itemDef_t *item, int key) {
	int flags;
	switch (item->type) {
    case ITEM_TYPE_EDITFIELD:
    case ITEM_TYPE_NUMERICFIELD:

		case ITEM_TYPE_LISTBOX:
		{
			flags = Item_ListBox_OverLB(item, DC->cursorx, DC->cursory);
			if (flags & (WINDOW_LB_LEFTARROW | WINDOW_LB_RIGHTARROW)) {
				scrollInfo.nextScrollTime = DC->realTime + SCROLL_TIME_START;
				scrollInfo.nextAdjustTime = DC->realTime + SCROLL_TIME_ADJUST;
				scrollInfo.adjustValue = SCROLL_TIME_START;
				scrollInfo.scrollKey = key;
				scrollInfo.scrollDir = (flags & WINDOW_LB_LEFTARROW) ? qtrue : qfalse;
				scrollInfo.item = item;
				captureData = &scrollInfo;
				captureFunc = &Scroll_ListBox_AutoFunc;
				itemCapture = item;
			} else if (flags & WINDOW_LB_THUMB) {
				scrollInfo.scrollKey = key;
				scrollInfo.item = item;
				scrollInfo.xStart = DC->cursorx;
				scrollInfo.yStart = DC->cursory;
				captureData = &scrollInfo;
				captureFunc = &Scroll_ListBox_ThumbFunc;
				itemCapture = item;
			}
			break;
		}
		case ITEM_TYPE_SLIDER:
		{
			flags = Item_Slider_OverSlider(item, DC->cursorx, DC->cursory);
			if (flags & WINDOW_LB_THUMB) {
				scrollInfo.scrollKey = key;
				scrollInfo.item = item;
				scrollInfo.xStart = DC->cursorx;
				scrollInfo.yStart = DC->cursory;
				captureData = &scrollInfo;
				captureFunc = &Scroll_Slider_ThumbFunc;
				itemCapture = item;
			}
			break;
		}
	}
}

void Item_StopCapture(itemDef_t *item) {

}

qboolean Item_Slider_HandleKey(itemDef_t *item, int key, qboolean down) {
	float x, value, width, work;

	//DC->Print("slider handle key\n");
	if (item->window.flags & WINDOW_HASFOCUS && item->cvar && Rect_ContainsPoint(&item->window.rect, DC->cursorx, DC->cursory)) {
		if (key == K_MOUSE1 || key == K_ENTER || key == K_MOUSE2 || key == K_MOUSE3) {
			editFieldDef_t *editDef = item->typeData;
			if (editDef) {
				rectDef_t testRect;
				width = SLIDER_WIDTH;
				if (item->text) {
					x = item->textRect.x + item->textRect.w + 8;
				} else {
					x = item->window.rect.x;
				}

				testRect = item->window.rect;
				testRect.x = x;
				value = (float)SLIDER_THUMB_WIDTH / 2;
				testRect.x -= value;
				//DC->Print("slider x: %f\n", testRect.x);
				testRect.w = (SLIDER_WIDTH + (float)SLIDER_THUMB_WIDTH / 2);
				//DC->Print("slider w: %f\n", testRect.w);
				if (Rect_ContainsPoint(&testRect, DC->cursorx, DC->cursory)) {
					work = DC->cursorx - x;
					value = work / width;
					value *= (editDef->maxVal - editDef->minVal);
					// vm fuckage
					// value = (((float)(DC->cursorx - x)/ SLIDER_WIDTH) * (editDef->maxVal - editDef->minVal));
					value += editDef->minVal;
					DC->setCVar(item->cvar, va("%f", value));
					return qtrue;
				}
			}
		}
	}
	DC->Print("slider handle key exit\n");
	return qfalse;
}


qboolean Item_HandleKey(itemDef_t *item, int key, qboolean down) {

	if (itemCapture) {
		Item_StopCapture(itemCapture);
		itemCapture = NULL;
		captureFunc = NULL;
		captureData = NULL;
	} else {
	  // bk001206 - parentheses
		if ( down && ( key == K_MOUSE1 || key == K_MOUSE2 || key == K_MOUSE3 ) ) {
			Item_StartCapture(item, key);
		}
	}

	if (!down) {
		return qfalse;
	}

  switch (item->type) {
    case ITEM_TYPE_BUTTON:
      return qfalse;
      break;
    case ITEM_TYPE_RADIOBUTTON:
      return qfalse;
      break;
    case ITEM_TYPE_CHECKBOX:
      return qfalse;
      break;
    case ITEM_TYPE_EDITFIELD:
    case ITEM_TYPE_NUMERICFIELD:
      //return Item_TextField_HandleKey(item, key);
      return qfalse;
      break;
    case ITEM_TYPE_COMBO:
      return qfalse;
      break;
    case ITEM_TYPE_LISTBOX:
      return Item_ListBox_HandleKey(item, key, down, qfalse);
      break;
    case ITEM_TYPE_YESNO:
      return Item_YesNo_HandleKey(item, key);
      break;
    case ITEM_TYPE_MULTI:
      return Item_Multi_HandleKey(item, key);
      break;
    case ITEM_TYPE_OWNERDRAW:
      return Item_OwnerDraw_HandleKey(item, key);
      break;
    case ITEM_TYPE_BIND:
			return Item_Bind_HandleKey(item, key, down);
      break;
    case ITEM_TYPE_SLIDER:
      return Item_Slider_HandleKey(item, key, down);
      break;
    //case ITEM_TYPE_IMAGE:
    //  Item_Image_Paint(item);
    //  break;
    default:
      return qfalse;
      break;
  }

  //return qfalse;
}

void Item_Action(itemDef_t *item) {
  if (item) {
    Item_RunScript(item, item->action);
  }
}

itemDef_t *Menu_SetPrevCursorItem(menuDef_t *menu) {
  qboolean wrapped = qfalse;
	int oldCursor = menu->cursorItem;
  
  if (menu->cursorItem < 0) {
    menu->cursorItem = menu->itemCount-1;
    wrapped = qtrue;
  } 

  while (menu->cursorItem > -1) {
    
    menu->cursorItem--;
    if (menu->cursorItem < 0 && !wrapped) {
      wrapped = qtrue;
      menu->cursorItem = menu->itemCount -1;
    }

		if (Item_SetFocus(menu->items[menu->cursorItem], DC->cursorx, DC->cursory)) {
			Menu_HandleMouseMove(menu, menu->items[menu->cursorItem]->window.rect.x + 1, menu->items[menu->cursorItem]->window.rect.y + 1);
      return menu->items[menu->cursorItem];
    }
  }
	menu->cursorItem = oldCursor;
	return NULL;

}

itemDef_t *Menu_SetNextCursorItem(menuDef_t *menu) {

  qboolean wrapped = qfalse;
	int oldCursor = menu->cursorItem;


  if (menu->cursorItem == -1) {
    menu->cursorItem = 0;
    wrapped = qtrue;
  }

  while (menu->cursorItem < menu->itemCount) {

    menu->cursorItem++;
    if (menu->cursorItem >= menu->itemCount && !wrapped) {
      wrapped = qtrue;
      menu->cursorItem = 0;
    }
		if (Item_SetFocus(menu->items[menu->cursorItem], DC->cursorx, DC->cursory)) {
			Menu_HandleMouseMove(menu, menu->items[menu->cursorItem]->window.rect.x + 1, menu->items[menu->cursorItem]->win